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Ambient Air Temperature Calculation Reset (with Ambient Air Temperature Sensor wired to ECM): Description

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.

This procedure resets the control module learned values of the component/system: B9 Ambient Air Temperature Sensor Hardwired: K20 Engine Control Module